[CMake] Using ${CMAKE_CFG_INTDIR} in ADD_TEST property WORKING_DIRECTORY

[David Cole]

On Thu, Jul 5, 2012 at 2:53 AM, Rolf Eike Beer <eike at sf-mail.de> wrote:
> Guillaume Blanc wrote:
>> Some tests that I run need to access files (using a relative path) that are
>> located in the same directory as the test executable itself. So I'm trying
>> to use ADD_TEST property WORKING_DIRECTORY in the following way:
>>
>> ADD_TEST(
>>   NAME mytest
>>   WORKING_DIRECTORY ${CMAKE_RUNTIME_OUTPUT_DIRECTORY}/${CMAKE_CFG_INTDIR}
>>   COMMAND myexec)
>
> WORKING_DIRECTORY $<TARGET_FILE_DIR:mytest>
>
> Eike
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This does not work:
  add_test(mytest ${CMAKE_COMMAND} -E chdir "c:/" $<TARGET_FILE:myexec>)

But this should:
  add_test(NAME mytest COMMAND ${CMAKE_COMMAND} -E chdir "c:/"
$<TARGET_FILE:myexec>)

As noted in the --help-command for add_test:
  http://cmake.org/cmake/help/v2.8.8/cmake.html#command:add_test
"Arguments after COMMAND may use "generator expressions" with the
syntax "$<...>"."

Only the NAME+COMMAND signature of add_test evaluates generator
expressions properly (like $<TARGET_FILE:myexec>). For that reason,
always prefer the newer NAME+COMMAND signature of add_test. (i.e.
always start with "add_test(NAME" using the NAME keyword...)

It should also be noted that you must run ctest with a -C Debug or -C
Release command line argument when you have a Visual Studio based
build and your tests are added with the NAME+COMMAND signature of
add_test. (If you run tests via the RUN_TESTS project in VS, then it
is already passing -C for you...)


HTH,
David